Needle actuating mechanism for circular knitting machines



Nov. 6, 1951 R. E. ,ZERUNEI TH 'NEEDLE ACTUATING MECHANISM FOR CIRCULAR KNITTING MACHINES Filed Oct. 27', 1948 5 Sheets-Sheet l INVENTOR. Rpuowu EZER HEH'H BY M Attorney Nov. 6, 1951 R. E. ZERUNEITH 3,

NEEDLE ACTUATING MECHANISM FOR CIRCULAR KNITTING MACHINES Filed Oct. 27, 1948 Sheets-Sheet 2 INVENTOR. RUDOLPH E-ZERUHEl H XWM Nov. 6, 195] zERuNEh-H 2,573,782

NEEDLE ACTUATING MECHANISM FOR CIRCULAR KNITTING MACHINES Fi led Oct. 27, 1948 5 Sheets- Sheet 3 Fig.3

|I I I:

INVENTOR.

RUDOLPH E.ZERUNEITH Nov. 6,1951 R EZERUNElTH 2,573,782

NEEDLE ACTUATING MECHANISM FOR CIRCULAR KNITTING MACHINES Filed Oct. 27, 1948 5 Sheets-Sheet 4 INVENTOR. RuDoLPH EZERuHEITH A Home Nov. 6, 1951 R. E. ZERUNEITH NEEDLE ACTUATING MECHANISM FOR CIRCULAR KNITTING MACHINES 5 Sheets-Sheet 5 Filed Oct. 27. 1948 m .e s a 1/ 2 wmVA Ila- I INVENTOR. RUDOLPH EZERUHElTH Attorney arm control heretofore used to move the cams on the rib machines, these star wheels taking up so much room as to permit, for example, only four feeds on a machine having an 18 inch diameter needle cylinder, the limited number of feeds resulting, of course, in low production. To increase production by increasing the number of feeds required the construction of a larger diameter needle cylinder machine, but such large diameter machine, while capable of, producing fabric at a greater rate was subject to the inherent disadvantage that it necessarily produced a circular fabric of inconveniently and uneconomically large diameter, because such larger diameter fabric would have to be cut to size and seamed for use as a tubular body member in the production of clothing, an obviously undesirable procedure.

However, with the type of cam controls provided by the present invention, a minimum of space is required for the :cam moving means and consequently each knitting feed requires much less room with the result that more feeds may be placed upon a given diameter machine than was possible with the star'wheel type of cam control. For example,'the 18 inch, machine above referred to may now have eight feedsthereon, thereby doubling the machine production and at the same time producing a circular knit fabric of a diameter convenient to be used Without the objectionable cutting and seaming necessary with the larger'size knitted tube. Obviously a smaller diameter machine producing fabric of a convenient diameter at a rate equal to a larger diameter machine, which has heretofore been necessary for this rate of production of aninconvenient size product, is highl desirable and the present invention provides sucha machine.

Figure 1 is a plan view of a portion of a rib knitting machine and shows posts ID extending upwardly from the top flat face of the usual gear ring, not shown, to which the cam ring is secured and which is driven thereby. At the upper ends of the posts lv is secured a spider arm H which inturn supports'acenter arm" l2, the spider arm II and the posts l2 providing a support for the needle dial, cams, stop motion, yarns and the normal superstructure of a rib knitting machine, all in the usual manner. The dial cam ring is also driven by suitable connection (not shown to the posts I2;

Supported on and secured to the gear ring between the posts 10 are cam ring sections l3, here shown as ten in number with two sections between adjacent posts l0. Obviously, the number of cam sections l3 and posts (0 may vary depending upon the diameter of the machine. A dail cam ring is shown at M and this contains the usual dial needle operating cams, some of which are movable as shown at 15. There is a set of movable dial cams l5 for each section l3 of the cylinder cam ring.

A pattern mechanism I6 is shown at one side of the machine, such mechanism being relatively stationary with respect to the rotating cam ring sections l3, so that as the latter pass the pattern mechanism they may be controlled by it to move the cams in the cylinder and dial cam rings.

Referring now to Figures 2, 3 and 4 where an enlargedsection I3 and portions of adjoining sections [3 are shown, it will be seen that each cam ring section [3 is shaped in the form of an arc of a circle and carries a number of cylinder needle actuating cams upon its inner face. Among these cams, secured fixedly to the inner face of a section '13, are cams -l'|, I8, I51 and 20 all acting upon 4 the cylinder needles in the making of rib fabric. A movable stitch cam 2| is provided at each feed or section [3 and this is adjustable verticall to lengthen or shorten the stitch by the usual mechanism indicated generally at 22. A star wheel 23 lying in a horizontal plane and forming a part of the mechanism 22 is actuated by an appropriate pattern mechanism, not shown, to cause the stitch cam 2| to move vertically. Movement of the star wheel 23 also causes apost 24, also part of mechanism 22, to turn and this turning post,

which is connected by suitable linkage to the dial stitch cam, moves the latter so that the cylinder and dial stitches are adjusted concurrently.

The remaining cams in each cam ring section I3 are movable vertically by the special means forming part of this invention. Referring now to the cam designated at 25, it will be noted that this cam is secured (see Figure 7) to a cylindrical cam post 26 having a vertical groove 2! in a flattened face thereof, by any suitable means, as for example, by a tongue which fits into the groove 21 and which is held therein by a suitable screw. Formed in the opposite flattened face of the cam post 26 is a transversely extending cross .head slot 28, such slot being located at different levels on different cam posts.

The two cams designated 29 and 30 are movable and are secured in a similar manner to a similar and adjacent cam post 26. These two cams move together as their supporting cam post 26 is raised or lowered. It will be noted that cam 36 is a thin cam which lies behind an undercut portion of the cam 25., These thin cams act in the usual manner upon long and short butt cylinder needles. 1

The cam designated 3| is secured to its cam post 26 in a similar manner and is movable therewithJyIt will be noted that there is a cam 3| for the center cam section I3 shown inthese views, but not for the other cam sections. This is conventional inasmuch as the cam 3| is not employed in the knitting at 'each feed, but per-' forms a needle control action for a complete revolutionv 0f the machine on, all the needles when it is thrown into action between sections of the fabric. I

Each of the cam sections is of solid metal and is provided, on its inner side, with an undercut section 32 having a circumferentially curved in-' ner surface to which the fixed cams are secured. A ledge 33 extends over the undercut section 32, the inner face of this ledge being in close proximity to the needle cylinder when the cam sections are in place. Each cam post/26 has a bearing in the cam sections I3, this bearing being provided by a hole drilled in the cam section'near the inner face thereof and passing through the ledge 33, the undercut section 32 and a further undercut section 34, below the section 32. The position of this hole issuch that it is complete in the ledge 33, as at 35, and is'open at one side" thereof in the undercut area 32, as at 36, and is opened to a greater extent at thev same side thereof in the undercut area 34, as at 31. The enclosed portions of the cam post 26 bearing'holeis suflicient to retain the same therein, while the openings permit the cams to cam posts 26 from turning.

In accordance with the present invention, spe-, cial means ,are provided for axially moving the ip o y'l .0m}? .13 ai h, if 9 compared to'thej 1e gthj threof and havi off center or e'ccen ally disposed 'in" 319 e tending longitudinally v Q f 96111161, i m t c lly jba iedip 4i extending longitudinally"fromthe' t thereof. The pins 39, 41!] andMfall te allel r the longitudinal-axis of e body member 38, the'pi'ns' 4'0 and 4i' equidistantlyto era-erase o'f thefl axisof said member. -A1'se-'-proviaed*m-eie ber 38 is acentrally located circumfere F extending retaininggrooveflg having a pai'r of d etrica'lly opp d epressions; or s'ocktsf 43 ar e er n! 38 1"ot'atably fit, as clearly appearsinFig 314' and 5, the bres being" positioned at diffe're t levels and at various points in the carnring see; tion l3 so that they are respectively directly in line' with the several movable e'e'nr posts" 26'; Each member 38' is held within its own bearing"- by means of a spring presseddetent ball suitably'mounted in the earn section and which pro: jects into the groove 42 as the member 33 rdtates and which also extends into the sockets 43 as a stop means when the member 38 has completed its rotation through an arc of 180 degrees.

Each member 38' when in operative position has the' forward eccentric pin 33 thereof fitted within the cross head slot 28 of its associated cam post 26 and has the rear eccentric pins 43' and 4| projecting freely from the outer face of thecam sections 13. At rest, the forward eeeentrio pin 39 of each member 38 is either in its uppermost or lowermost position, while the outwardly projecting rear eccentric pins 43 and 4! are in one or the other of the positions shown in Figure 8. When the pins 40 and 4| arein' the position shown in full lines at thele'ft of Figure 8, then the pin 39 is in its lowermost position and the associated cam post 23 with its attendant cam or cams are in lowered position. Conversely, when the pins 33 and at are in their dotted line position shown to the right of Figure 3, then the pin 39 is in its uppermost position and the associated cam post 26 with its attendant c'am' or cams are in raised position. The movement imparted to each cam post is equal to twice the distance from thecenter of the cylindrical member 38 to the center of pin 33;

Means are provided to turn each of thecyli'ndrical members 33 a distance of I80 degrees whenever it is desired to move certain of the knitting cams. During the knitting of rib'fabric it is at times desirable to change the character thereof, as from plain rib to interlock rib, or it may be desirable to change the stitchstructure: inother ways. In order to accomplish this, eertain of the cams in the cylinder and dial'mus't be moved under pattern control and to this end the mechanism indicated at H; is provided.

Spaced brackets 45 and 46 are secured-to any suitable stationary part of the machine" frame and these support between them a shaft 41 and a; bar 48, below the shaft 41. At intervals along" the shaft 41, corresponding to the circumferential spacing between adjacent members 38 in a single cam section} are journalled a-plurality of bell crank levers 49of which the lower rearwar ly extending arms 50 are all of the same length to overlie the bar- 48; the number of said cranks corresponding to the number of the members" 38 "L ne p eirqiy; extendm farnis T1 the erases 9, indicated at are of difi'erent' jecting intercepting finger 52 disposed at the 1e' 1 r a eerres'p ham member 38 within a cam section [3. Accordingly; it will be noted that each member within each cam ring section [3 5 1$ ind lli l' a tlla n i b ti 391.

, which contrels'onl y that member; When sirchf aft actuating member 4 9 is in it's operativefull line pos t on; of Figure 5 the intercepting finger 52"there of lies irrthe path of one of thepins'M] orAI, asappearsin Figure 8, as the same ring rotates past'the p'a'tte'rn' control mechanism. Theupper edge of thefingerig is positionally coincident with or slightly below; the axial center line orthe" cylindrical member 38 and as the machine rotates the side face of the intercepting finger 52 I is engaged by one of the pins, say as in the full line position of Figure 3, so that upon continued rotation of the machine the member 38 iscaused to be turned through 180 degrees into" the dotted line'" position shown i this fi re:

, whereuponflengagement between the pin 40 and projection 52 ceases, leaving the pins in reversed position. The next time it is desiredto move themember 38, the pin 4| will engage the inter cepting finger 52 and in a simil'arm'anne'r the member 38 will be again rotated through anai 'c of iso degrees to presenra its original p'es The bell crank levers 49- are' moved to ac position by means of individual pattern pins 53 mounted for limite'd movement vertically in the bar 48. Each pin 53 underlies the end 'ofa bell crank lever and as a pin is raised the cor responding lever is moved to active position. Conversely as a pin is lowered the actuating lever 49 is rendered inactive. I

The mechanism for shifting the pins 53 selectively, as required include apattern chain 54 011 a sprocketiii which indei'resan'd which also shifts bodily upwardly and downwardly into one or the other of the twoposition indicated in full and dotted lines in Figure 5. Appropriate laterally spaced pattern lugs56 are affixed to cross members of the chain 54 in accordance with the pattern control of the movable cams desired, and as the chain is raised these lugs 53 raise the pins 53to initiate the action above described. In this manner by placing the lug 56 on the pattern chain as desired, it is possible to selectively rotate the various members 38 to shift their associated cams and change the "character of the rib knitting in accordancewith the pattern set up on the chain. It is to be notedthat with the intercept ing fingers 52 at various levels corresponding to the level of the various members 38, each finger .52 actuates only that particular member 38 which isat the operating level of an intercepting finger.

The movable cams 15 in the dial cam [4 are moved, concurrently with the movable cylinder cams' and to accomplish this cylindrical members similar to those designated at 38 in the cylinder ee'm ring are provided. These cylindrical hers are designated 51, here shown as four in number foreach feed, and are arranged vertically within a su i'table housing 58 secured to each cam rin'g section I 3. In this case the single for ward eccentric pin 59 extends upwardly above the upper face of the housing 58, while the two rear eccentric pins '63 and BI extend downwardly be- 1031 the housing. Links shownfat '6'Z,'one for each member 51, extend between the pins I 5}] aiid t he dial cams ;l5', be ing pivotally connected to the it latter; The dial earns are pivotallymoiintedafid lengths, each terminatingin, a rearwardly pre-'- were as. the links 62 are moved substantially radially:

of the machine, the cams 15 are correspondingly shifted about their own pivot points.

The outer ends of the four links are each provided with a hole within which an eccentric pin 59 is adapted to fit and to rotate. When the pins 59 are in the full line position of Figure the links are in their outermost radial position and conversely, when the pins are in the dotted line position, the links are in their innermost radial position. A spring pressed detent ball 53 suitably mounted in the housing 58 acts on each member 5'! in the same manner that the spring pressed detent ball 44 cooperates with the member 38.

'To actuate the depending pins 60 and SI, projecting pattern controlled fingers, similar to the fingers 52, are provided. These are shown as the terminal ends 65 of the bell crank levers 64, all of which are also pivoted on the shaft 41 of the pattern mechanism and actuated by appropriate lugs 56 on the patternchain acting on vertically shiftable pattern pins 53 respectively provided for the several levers 64. In Figure 5, a bell crank lever 64 is shown in dotted lines and the projecting end 65 thereof is positioned to clear the underside of the housing 58 at the point where the pins 60 and 6| extend downwardly. This projecting finger 65 is positioned, when pattern actuated, to engage and intercept only the outermost pin, e. g. pin 60, as the cam ring rotates to turn the member 5'! through an arc of .180 degrees in a manner similar to the turning of each member 38 by its operatively associated intercepting finger 52. The next turning of the member 51 would then be by mean of contact between the intercepting finger 65 and pin 6|, which latter will have assumed the position previously occupied by the pin 69.

It will be noted that at each feed the four members 51 are positioned in the housing 58 at different radial positions with respect to theirassociated cam ring section [3 and that the upwardly projecting intercepting fingers 65 of the four corresponding levers 64 are also at different radial positions, each of the members 51 and its intercepting finger 65 being at the same radial position so that relative rotation of the cam ring and pattern mechanism causes each member 51 to be actuated only by its own intercepting finger 65. In this manner each of the four dial cams I 5 may be separately controlled by the pattern mechanism for desired movement thereof in unison or individually. The four fingers 65, once set by the pattern mechanism, usually for not less than a complete revolution of the machine, will successively engage or not engage the depending pins according to pattern on all of the ten feeds of the machine as they travel past the pattern mechanism.

It will be seen that this invention provides extremely simple and compact means for controlling the positions of the movable cams in the cylinder and in the dial. It will also be seen that due to the simplicity and compactness of the cam control means that a minimum of space is required for all the cams for a single feed and that consequently a greater number of feeds with attendant increased production may be provided for a given diameter of machine than heretofore has been possible.

Referring to Figure 3 it will be noted at 66-66 that the forward ends of two members 38--38 having the pins 39-49 are shown without cam postsor cams associated therewith. In this instance the cam posts and cams have been removed in the interest of clarity to show the appearance of the forward ends of the actuating members 38 in the cam ring section as viewed from the center of the machine.

It will be understood, of course, that the present invention is susceptible of various changes and modifications which may be made from time to time without departing from the general principles or real spirit thereof, and it is accordingly intended to claim the same broadly, as well as specifically, as indicated by the appended claims.

What is claimed as new and useful is:

1. In a circular knitting machine of the type having a rotary cam ring and a movable cam associated therewith, means adapted to move said cam comprising a cylindrically shaped member rotatably journalled on the cam ring for actuating said cam, said member having an eccentric pin extending longitudinally from one end and a pair of diametrically spaced eccentric pins extending longitudinally from the opposite end thereof, said latter pair of pins being spaced equidistantly to either side of the longitudinal axis of said member.

2. In a circular knitting machine of the type having a rotary cam ring and a movable cam associated therewith, means adapted to move said cam comprising a cylindrically shaped member rotatably journalled on the cam ring for actuating said cam, said member having an eccentric pin extending longitudinally from one end and a pair of diametrically spaced eccentric pins extending longitudinally from the opposite end thereof, said latter pair of pins being spaced equidistantly to either side of the longitudinal axis of said member, and all of said pins being axially parallel to each other and to the axis of said member.

3. In a circular knitting machine of the type having a rotary cam ring and a movable cam associated therewith, means adapted to move said cam comprising a rod-like member rotatably journalled on the cam ring, said member having a single offset pin extending longitudinally from one end face and a pair of diametrically spaced ofiset pins extending longitudinally from the other end face thereof, said single pin being operatively related to the said cam and said pair of pins being selectively adapted to rotate the said member through an arc of degrees.

4. In a circular rib knitting machine of the type having a rotary cam ring, a plurality of knitting feeds thereon and movable cams at each feed, means for increasing the feeds for a given diameter of machine comprising cam-shifting devices each occupying a relatively small area of the cam ring, said cam-shifting devices being each in the form of a cylindrical member of relatively small diameter rotatably journalled on the cylinder cam ring, said member having a single offset pin extending longitudinally from one end of said member and a pair of diametrically spaced offset pins extending longitudinally from the opposite end thereof, each of said single pins being operatively related to a movable cam and each of said pair of pins being adapted to rotate the member from which they extend.

5. In a circular knitting machine of the type having a rotary cam ring and a movable cam therein, means adapted to move said cam comprising a cylindrically shaped member rotatable in a cam ring supported housing and extending therethrough '{iirom face said inembe i-iig longitii nally i roin oherei-id thereof and a pair of diametrically spaced oiiset 'pins extending longitudinally from "the -other end thereof,

said single pin and said-pair of pins extending respectiveiy outward-1y r m opposite races of --said housing', said single being operativly related to 'the 'said cam and said pair f "pins be-ing selectively adapted torotate the said'member in naid-homingthrough'successive arcs of 180 degrces each.

6. In a circular knitting machine-of th'e'ty-pe "having a rotary cam -ringand a movable cam -therein, means adapted to move said cam comprising .a vertically "movable post in the cam ring adjacent the innerface thereof and supportin the said cam, and a cyiindncany shaped member 'iiot'atable in the cam ring and extending radially -ti-ve1y iada-ptednto rotate the said member through successive .arcs of ice degrees, each such rotarcion' of .the' said member causing the said post andrcam to be moved verticaliy.

i T1 in 1a Lknittingmachine hav ingia cam or the like to he moved; :a motion transmitting means comprising a housing having opposite races, a

'cylmdrically shaped member rotatable in-said housing and extending therethrough from face -tn-faee thereof, an eccentrically disposed single pin extending mom one en'd of isa'id' membcr-and a .pair of diametrically spaced pins extending :iromthe apposite end thereof, said single pin projecting outwardly from one face of said housing:end-"beingnperatively related to said cam and said pair of pins projectinglougtwardiy from the cppositekiace :of said housing and being ada ted to rotate said member.

8. In a knitting machine having a cam or the like to-be moved, ;a motion transmittin means comprising a housing havingopposite faces, a cyundrically shaped member rotatable in said housing and extending therethrough froinface to face thereof, an eccentrically disposed single pin extending oneend ofsaid member and a pair of'diametricai lyspaced pins extending from the opposite endthereor, said single pin projecting outwardly from one face of said housr,

andibeing-operatively related to said cam and said pair of pins projecting outwardly from the opposite-face of said housing and "being adapted to rotate said member, said pair of pins being spaced equidistantly from the longitudinal axis of said rotatable member and being commonly disposed in a diametric plane of said member angularly related to the diametric plane thereof in which is disposed said single pin.

9. In a circular knitting machine of the type having a rotary cam ring and a movable cam therein, means adapted to move said cam comprising a post vertically movable in the cam ring adjacent the inner face thereof with one face of the post exposed, said cam being secured to the exposed face of the post, a transversely extending slot in the rear face of said post, and a cylindrically shaped member rotatable in the cam ring and extending radially therethrough from the rear of the cam post to the outer face thereof, said member having an eccentrically disposed P "em-sass extending fromz the inner end thereof into the said slot and 'a pair ofspaced diametrically disposed pins extending from the outer end "of :said member projecting from the cam ring, said pins being adapted to+rotate the said member, rotation of the said member causing the said post andcamto be moved vertically.

1'0. In a circular knitting machine of the 'type having a rotary cam ring and a movable cam therein, means adapted to move said cam comprising a post vertically movable in thercam ring adjacent the inner' iace thereof with onesideaof the post exposed, said cam being secured :tortlie post at said exposed side, a:transverselyextcnding slot in1the1rear side :of said post, a cylindri- :ca'l'ly shaped member rotatable in the cam :ring .and extending radially :therethrough from the rear of the cam post to the outer face thereof, said member having an eccentrically disposed pin extending from the inner end thereof into the said slot and a. pair -of 'rspaced diametrically dis posed pins extending from the outer end 10f said member and projecting freely from the cam ring, .said pins :being adapted to rotate the saidmemher, said-member being provided with a circumferential grooveuhav'ing diametric *socke'tsthere- :in, and a spring-pressed detent projecting into said :slot and adapted to seat in one or the :other of said sockets. V

111. In a circular rib knitting machine -having rotary cylinderand dial cam "rings, a movable cam in saiddialcam ring, means adapted to move said cam comprising .a support mounted I on {the cylinder :cam' ring and having upper and lower faces, and a cylindric'ally shaped member rotatable in said support, and extending vertically therethroughfrom race to face thereof, an eccentrically disposed, pin extending from the flipper end of said-member and projecting freely above the upper face of said support, a link operatively relating the said pin and the said cam, a pair :of spaced (diametrically disposed pins extendingfrom the "lower endof said member and projecting freely below rthexlowcr face :of.-rsaid support the math of pattern controlled actuating means therefor, said gipins being adapted to :rotate :said member when said actuating means are -opera hive :tOiGfiGCt movement of said :linksand said cam.

112. A circular: rib knitting machine of the type "having at plurality of rotary cam ring sections each affording at least one feed, .a "plurality of flilocabl'e cams on each cam' ringsection, means adapted to move-each of said :cams selectively comprising for each movable cam a vertically movable transversely slotted post mounted in the cam ring section adjacent the inner face thereof "'with'one side or the post exposed; a cam secured to each post at said exposed side thereof, and a plurality of cylindrically shaped members each rotatable in the cam ring and extending radially therethrough from the rear of each post at the level of the transverse slot therein to the outer face of the cam ring, each of said members having an eccentrically disposed pin extending from the inner end thereof into the slot of its associated post and a pair of spaced diametrically disposed pins extending from the outer end of each of said members and projecting from the cam ring, said paired pins on each member being adapted to rotate that member, and stationary pattern controlled actuating means operatively disposed relatively to the paired pins of said members to selectively actuate the latter in accordance with the pattern set up as the cam ring 7 moves past the patterns means.

13. In a circular rib knitting machine of the type having rotary cylinder and dial cam rings and a number of feeds thereon, a plurality of movable cams at each dial feed, means adapted to move each of said cams selectively comprising '1 at each feed a support mounted on the cylinder cam ring and having upper and lower faces, a .:plurality of cylindrically shaped members rotatable in said support and extending vertically therethrough from face to face thereof, said 'members being positioned with their axes substantially parallel to each other and along a line intersecting the circumference of said cylinder cam'ring so that each is a different radial distance from the center of the machine, an eccentrically disposed pin extending from the upper end of each of said members and projecting above the upper face of said support, a plurality of links operatively relating said pins to said movable dial cams, a pair of diametrically spaced pins extend a ing from the lower end of each of said members and projecting freely below the lower face of said support at points spaced the said different radial distances from the center of the machine, and stationary pattern controlled actuating means disposed at each of said radially spaced points to selectively actuate each of said pairs of pins in accordance with the pattern set up as the cam rings move past the pattern means. 14.' In a knitting machine having a cam or the like to be moved, a motion transmitting means comprising a support having opposite faces, a cylindrically shaped member rotatable in said support and extending therethrough from face to face thereof, an eccentrically disposed single pin extending from one end of said member and a pair of diametrically spaced eccentrically disposed pins extending from the opposite end thereof, said single pin projecting outwardly from one face of said support and being operatively related "to said cam and said pair of pins projecting outwardly from the opposite face of said support and being adapted to rotate said member, and pattern controlled means selectively operative to engage each of said pair of pins for successively rotating Isaidmember through arcs of 180 degrees upon each such engagement, each 180 degree rotation of the said member causing the single pin to move the said cam a distance equal to twice the distance between the center of said member and said single pin. 1

15. In a knitting machine having a cam or the like to be moved, a, motion transmitting means comprising a support having opposite faces, a cylindrically shaped member rotatable in said hous- 1 ing and extending therethrough from face to face thereof, an eccentrically disposed pin extending y from one end of said member and a pair of diametrically spaced eccentrically disposed pins extending from the opposite end thereof, all of said pins being parallel to each other and to the iongitudinal axis of the cylindrical member and lying within the extended cylindrical surface of the member, said single pin projecting outwardly from one face of said support and being operatively related to said cam and said pair of pins projecting outwardly from the opposite face of said support and being alternately engageable to successively rotate said member through arcs of degrees.

16. In a circular knitting machine of the type having a sectionalized rotary cam ring the several sections of which are respectively provided with cams, certain of said cams being movably mounted to permit them to be alternately set into one of several positions, means for setting said movable cams alternately into one of their several positions, said means including a rotatable camsetting member rotatably carried by said cam ring with its axis genera1ly transverse of the direction in which each movable cam is adapted to be moved when moved from one of its positions to another of its positions, means intermediate said cam-setting member and a movable cam for operatively interconnecting the same so as to set said movable cam into a predetermined position corresponding to each position of said cam-setting member, tooth means carried by said rotatable cam-setting member whereby said cam-setting member may be rotated, successively, fractions of a revolution to its several setting positions, and an intercepting selector abutment carried by said knitting machine at a predeterminedly fixed locus relatively to said cam ring and movable generally radially with respect to said ring for engaging one of the teeth of said tooth means of said rotatable cam-setting member as the latter moves with its cam ring through the orbit of rotation of the latter.

RUDOLPH E. ZERUNEITH.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Miller Oct. 28, 1941 

